name = "小明"
result = "你好，我叫%s。" %name
print(result)


name ="小明"
age =  12
result = "你好，我叫%s， 今年我%d岁了。"%(name,age)
print(result)


name = "李强"
age = "12"
re = "你好，我叫%s， 今年我%s岁了。" % (name,age)
print(result)